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1. 发明授权

US08961649B2 System and method for extracting base metal values from oxide ores 有权
标题翻译：从氧化矿中提取贱金属的系统和方法
公开(公告)号：US08961649B2
公开(公告)日：2015-02-24
申请号：US12198229
申请日：2008-08-26
申请人： Antonio Clareti Pereira , Flavia Dutra Mendes , Tiago Valentim Berni , Ahmed Vahed
发明人： Antonio Clareti Pereira , Flavia Dutra Mendes , Tiago Valentim Berni , Ahmed Vahed
IPC分类号： C22B15/00 , C22B1/08 , C22B3/10 , C22B23/00 , C22B3/00 , C22B5/00 , C22B21/00
CPC分类号： C22B1/08 , C22B3/10 , C22B23/005 , C22B23/04 , C22B23/0407 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the group consisting of at least one of nickel, cobalt and copper. The method includes the steps of: contacting the oxide ore with hydrogen chloride gas to obtain chlorides of the first and second metals and subjecting at least the first and second metals to pyrohydrolysis at a predetermined temperature to decompose the chlorides of the first metal into oxides. The method also includes the step of mixing the oxides of the first metal and the chlorides of the second metal in an aqueous solution to dissolve the chlorides of the second metal and recovering the dissolved ions of the second metal from the aqueous solution.
摘要翻译：本公开提供了一种从氧化物矿中回收贱金属的方法。矿石包括选自铁和铝中的至少一种的第一金属和选自镍，钴和铜中的至少一种的第二金属。该方法包括以下步骤：使氧化矿石与氯化氢气体接触，得到第一和第二金属的氯化物，并使至少第一和第二金属在预定温度下进行热解，以将第一金属的氯化物分解为氧化物。该方法还包括将第一金属的氧化物和第二金属的氯化物在水溶液中混合以溶解第二金属的氯化物并从水溶液中回收第二金属的溶解离子的步骤。

2. 发明申请

US20090241731A1 SYSTEM AND METHOD FOR EXTRACTING BASE METAL VALUES FROM OXIDE ORES 有权
标题翻译：从氧化物提取基础金属值的系统和方法
公开(公告)号：US20090241731A1
公开(公告)日：2009-10-01
申请号：US12198229
申请日：2008-08-26
申请人： Antonio Clareti Pereira , Flavia Dutra Mendes , Tiago Valentim Berni , Ahmed Vahed
发明人： Antonio Clareti Pereira , Flavia Dutra Mendes , Tiago Valentim Berni , Ahmed Vahed
IPC分类号： C22B15/00 , C22B5/00 , C22B21/00 , C22B23/00 , C22B61/00
CPC分类号： C22B1/08 , C22B3/10 , C22B23/005 , C22B23/04 , C22B23/0407 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the group consisting of at least one of nickel, cobalt and copper. The method includes the steps of: contacting the oxide ore with hydrogen chloride gas to obtain chlorides of the first and second metals and subjecting at least the first and second metals to pyrohydrolysis at a predetermined temperature to decompose the chlorides of the first metal into oxides. The method also includes the step of mixing the oxides of the first metal and the chlorides of the second metal in an aqueous solution to dissolve the chlorides of the second metal and recovering the dissolved ions of the second metal from the aqueous solution.
摘要翻译：本公开提供了一种从氧化矿中回收贱金属的方法。矿石包括选自铁和铝中的至少一种的第一金属和选自镍，钴和铜中的至少一种的第二金属。该方法包括以下步骤：使氧化矿石与氯化氢气体接触，得到第一和第二金属的氯化物，并使至少第一和第二金属在预定温度下进行热解，以将第一金属的氯化物分解为氧化物。该方法还包括将第一金属的氧化物和第二金属的氯化物在水溶液中混合以溶解第二金属的氯化物并从水溶液中回收第二金属的溶解离子的步骤。

3. 发明授权

US08597601B2 Selective base metals leaching from laterite ores 有权
标题翻译：红土选矿碱金属浸出
公开(公告)号：US08597601B2
公开(公告)日：2013-12-03
申请号：US13487097
申请日：2012-06-01
申请人： Tiago Valentim Berni , Antonio Clareti Pereira , Flavia Dutra Mendes
发明人： Tiago Valentim Berni , Antonio Clareti Pereira , Flavia Dutra Mendes
IPC分类号： C22B23/00
CPC分类号： C22B3/08 , C22B23/043 , Y02P10/234
摘要： A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii) selective dissolution.
摘要翻译：一种使用硫酸铁平衡来降低总体酸消耗和铁提取的方法，该方法包括以下步骤：（i）硫酸化; （ii）选择性热解和（iii）选择性溶解。

4. 发明申请

US20130028816A1 SELECTIVE BASE METALS LEACHING FROM LATERITE ORES 有权
标题翻译：选择性碱金属浸出来自LATERITE ORES
公开(公告)号：US20130028816A1
公开(公告)日：2013-01-31
申请号：US13487097
申请日：2012-06-01
申请人： Tiago Valentim BERNI , Antonio Clareti Pereira , Flavia Dutra Mendes
发明人： Tiago Valentim BERNI , Antonio Clareti Pereira , Flavia Dutra Mendes
IPC分类号： C22B23/00 , C22B3/04
CPC分类号： C22B3/08 , C22B23/043 , Y02P10/234
摘要： A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii) selective dissolution.
摘要翻译：一种使用硫酸铁平衡来降低总体酸消耗和铁提取的方法，该方法包括以下步骤：（i）硫酸化; （ii）选择性热解和（iii）选择性溶解。

5. 发明授权

US08173086B2 Process of recovery of base metals from oxide ores 有权
标题翻译：从氧化矿中回收贱金属的工艺
公开(公告)号：US08173086B2
公开(公告)日：2012-05-08
申请号：US12835455
申请日：2010-07-13
申请人： Antonio Clareti Pereira , Tiago Valentim Berni
发明人： Antonio Clareti Pereira , Tiago Valentim Berni
IPC分类号： C01G1/00
CPC分类号： C22B23/0423 , C22B1/08 , C22B3/10 , C22B15/0019 , C22B15/0082 , C22B23/005 , C22B23/0407 , Y02P10/216 , Y02P10/234 , Y02P10/236
摘要： A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from iron, magnesium and aluminum and a second group metal selected from nickel, cobalt and copper. The method includes reducing ore particle size to suit the latter unit operations, favoring contact of the metal elements, contacting the ore with ferric or ferrous chloride, hydrated or anhydrous, to produce a mix of ore and iron(II or III) chloride, subjecting the mixture of the ore and ferric or ferrous chloride to enough energy to decompose the chlorides into hydrochloric acid and a iron oxide, contacting the readily-formed hydrochloric acid with the base metal oxides from the second group, forming their respective chlorides, selectively dissolve the produced base metal chlorides, leaving the metals as oxides and in the solid state, and recovering the dissolved base metal values from aqueous solution.
摘要翻译：提供了一种从氧化矿中回收贱金属的方法，其中矿石包括选自铁，镁和铝的第一组金属和选自镍，钴和铜的第二组金属。该方法包括减少矿石颗粒尺寸以适应后者的单元操作，有利于金属元素的接触，使矿石与水合或无水的铁或氯化亚铁接触，以产生矿石和铁（II或III）的混合物，矿石和铁或氯化亚铁的混合物具有足够的能量将氯化物分解成盐酸和氧化铁，使容易形成的盐酸与第二组的贱金属氧化物接触，形成它们各自的氯化物，选择性地溶解生成贱金属氯化物，将金属作为氧化物并保持固态，并从水溶液中回收溶解的贱金属。

6. 发明申请

US20110142736A1 PROCESS OF RECOVERY OF BASE METALS FROM OXIDE ORES 有权
标题翻译：从氧化物中回收碱金属的工艺
公开(公告)号：US20110142736A1
公开(公告)日：2011-06-16
申请号：US12835455
申请日：2010-07-13
申请人： Antonio Clareti Pereira , Tiago Valentim Berni
发明人： Antonio Clareti Pereira , Tiago Valentim Berni
IPC分类号： C22B23/00 , C22B15/00
CPC分类号： C22B23/0423 , C22B1/08 , C22B3/10 , C22B15/0019 , C22B15/0082 , C22B23/005 , C22B23/0407 , Y02P10/216 , Y02P10/234 , Y02P10/236
摘要： A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from iron, magnesium and aluminum and a second group metal selected from nickel, cobalt and copper. The method includes reducing ore particle size to suit the latter unit operations, favoring contact of the metal elements, contacting the ore with ferric or ferrous chloride, hydrated or anhydrous, to produce a mix of ore and iron(II or III) chloride, subjecting the mixture of the ore and ferric or ferrous chloride to enough energy to decompose the chlorides into hydrochloric acid and a iron oxide, contacting the readily-formed hydrochloric acid with the base metal oxides from the second group, forming their respective chlorides, selectively dissolve the produced base metal chlorides, leaving the metals as oxides and in the solid state, and recovering the dissolved base metal values from aqueous solution.
摘要翻译：提供了一种从氧化矿中回收贱金属的方法，其中矿石包括选自铁，镁和铝的第一组金属和选自镍，钴和铜的第二组金属。该方法包括减少矿石颗粒尺寸以适应后者的单元操作，有利于金属元素的接触，使矿石与水合或无水的铁或氯化亚铁接触，以产生矿石和铁（II或III）的混合物，矿石和铁或氯化亚铁的混合物具有足够的能量将氯化物分解成盐酸和氧化铁，使容易形成的盐酸与第二组的贱金属氧化物接触，形成它们各自的氯化物，选择性地溶解生成贱金属氯化物，将金属作为氧化物并保持固态，并从水溶液中回收溶解的贱金属。

7. 发明授权

US08802042B2 Process of recovery of base metals from oxide ores 有权
标题翻译：从氧化矿中回收贱金属的工艺
公开(公告)号：US08802042B2
公开(公告)日：2014-08-12
申请号：US13384207
申请日：2010-07-14
申请人： Antonio Clareti Pereira , Tiago Valentim Berni
发明人： Antonio Clareti Pereira , Tiago Valentim Berni
IPC分类号： C01G1/00
CPC分类号： C22B3/10 , C22B15/0069 , C22B23/0423 , Y02P10/234 , Y02P10/236
摘要： A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from nickel, cobalt and copper. The method includes reducing ore particle size to suit the latter unit operation, favoring contact for the metal elements, contacting the ore with ferric or ferrous chloride, hydrated or anhydrous, to produce a mix of ore and iron (II or III) chloride subjecting the mixture of the ore and ferric or ferrous chloride to enough energy to decompose the chlorides into hydrochloric acid and a iron oxides from the second group, forming their respective chlorides, selectively dissolve the produced base metal chlorides, leaving the metal as oxides and in the solid state, and recovering the dissolved base metal values from aqueous solution.
摘要翻译：提供了一种从氧化矿中回收贱金属的方法，其中矿石包括选自镍，钴和铜的第一组金属。该方法包括减少矿石颗粒尺寸以适应后一单元操作，有利于金属元素的接触，使矿石与水合或无水的铁或氯化亚铁接触，以产生矿石和铁（II或III）的混合物，矿石和三价铁或氯化亚铁的混合物具有足够的能量将氯化物分解成盐酸和来自第二组的氧化铁，形成它们各自的氯化物，选择性地溶解所生产的碱金属氯化物，将金属作为氧化物和固体状态，并从水溶液中回收溶解的贱金属值。

8. 发明授权

US08628739B2 Direct purification of a nickel laterite leaching effluent 有权
标题翻译：直接纯化镍红土浸出液
公开(公告)号：US08628739B2
公开(公告)日：2014-01-14
申请号：US13364107
申请日：2012-02-01
申请人： Tiago Valentim Berni , Antonio Clareti Pereira
发明人： Tiago Valentim Berni , Antonio Clareti Pereira
IPC分类号： C22B23/00
CPC分类号： C22B3/42 , C22B23/0415 , C22B23/0453 , Y02P10/234
摘要： The present invention refers to a direct purification process of a nickel laterite leaching effluent including adjusting a pH of a leaching solution, employing an ion exchange resin to adsorb nickel and copper selectively over ferric or ferrous iron, and recovering nickel.
摘要翻译：本发明涉及一种镍红土浸出液的直接纯化方法，包括调节浸出溶液的pH值，采用离子交换树脂选择性地吸附镍和铜，并对镍和镍进行回收。

9. 发明授权

US08747795B2 Process for production of nickel carbonate 有权
标题翻译：碳酸镍生产工艺
公开(公告)号：US08747795B2
公开(公告)日：2014-06-10
申请号：US13430362
申请日：2012-03-26
申请人： Tiago Valentim Berni , Antonio Clareti Pereira , Felipe Hilario Guimar{hacek over (a)}es
发明人： Tiago Valentim Berni , Antonio Clareti Pereira , Felipe Hilario Guimar{hacek over (a)}es
IPC分类号： C01G53/06
CPC分类号： C01G53/06
摘要： Aspects of the present invention refers to a process for production of nickel carbonate including preparing a magnesium salt solution, contacting the solution with a stream of gaseous CO2, keeping pH between 4 and 10 and temperature between 0 and 100° C., during up to 5 hours to produce a first mixture, contacting the first mixture with a nickel sulphate solution to produce a second mixture, performing a separation of liquid and solid portions of the second mixture, and feeding the magnesium salt solution with the liquid portion. This process recycles the reagent used for producing nickel carbonate and yields a final product that is easy to handle and transport.
摘要翻译：本发明的方面涉及一种生产碳酸镍的方法，包括制备镁盐溶液，使溶液与气态CO 2气流接触，保持pH在4和10之间，温度在0和100℃之间，在 5小时以产生第一混合物，使第一混合物与硫酸镍溶液接触以产生第二混合物，分离第二混合物的液体和固体部分，并将镁盐溶液与液体部分一起进料。该方法回收用于生产碳酸镍的试剂，并产生易于处理和运输的最终产品。

10. 发明申请

US20110110832A1 MAGNESIUM RECYCLING AND SULPHUR RECOVERY IN LEACHING OF LATERITIC NICKEL ORES 有权
标题翻译：冶炼镍矿的镁回收和硫回收
公开(公告)号：US20110110832A1
公开(公告)日：2011-05-12
申请号：US12475727
申请日：2009-06-01
申请人： Antonio Clareti Pereira , Felipe Hilario Guimaraes , Joao Alberto de Lessa Tude , Lino Rodrigues de Freitas , Tiago Valentim Berni
发明人： Antonio Clareti Pereira , Felipe Hilario Guimaraes , Joao Alberto de Lessa Tude , Lino Rodrigues de Freitas , Tiago Valentim Berni
IPC分类号： C01F5/40
CPC分类号： C22B23/043 , C22B3/44 , C22B23/0461 , Y02P10/234
摘要： The present invention resides in a process of recovering nickel and cobalt, regenerating the main raw materials, said process including the steps of: granulometric separation; leaching; neutralization; MHP production in only one stage and the pressure crystallization of magnesium sulphite.The process proposes a way to recovery nickel and cobalt from laterite ores through the atmospheric and heap leaching with staged addition of ore—by size separation—and H2SO4, decreasing the nickel losses and simplifying the neutralization circuit and producing a more purified MHP.The present process route is employed for nickel extraction, including the one from high magnesium containing lateritic ores.
摘要翻译：本发明在于回收镍和钴，再生主要原料的方法，所述方法包括以下步骤：粒度分离; 浸出中和; MHP生产只在一个阶段和亚硫酸镁的压力结晶。该方法提出了一种从红土矿石经过大气和堆浸法回收镍和钴的方法，分阶段加入逐粒度分离和H2SO4，减少镍损失，简化中和回路并产生更纯化的MHP。本工艺路线用于镍提取，包括来自高镁含红土矿石的方法。

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